Help ! Chemistry! 10 points best answer

Nitroglycerin (C3H5N3O9) can decompose and is represented by the following reaction:
C3H5N3O9 ----------> 6N2+CO2+H2O+O2

1.What coefficients balance the reaction?
2.How much nitrogen(in grams) forms when 500g of nitroglycerin decomposes?
3.How much Nitroglycerin (in grams) decomposes if 325g CO2 forms?
4.How many moles of water forms when 200g of nitroglycerin decomposes?
5.How much carbon dioxide forms(in grams) when 1kg of nitroglycerin decomposes?

1. The balanced equation is
4C3H5N3O9 ------> 6N2+12CO2+10H2O+O2

2. mass= moles x molar mass* (*from the periodic table)
from the balanced equation, moles ratio of nitrogen to nitroglycerin = 6:4
i.e. moles of nitrogen = 4/6 x moles of nitroglycerin

moles of nitroglycerin = mass/molar mass = 500/(12x3 + 5x1 + 3x14 + 9x16) = 2.203 moles
so. moles of nitrogen = 6/4 x 2.203 = 3.304 moles

and hence, mass of nitrogen = 3.304 x (2x14) = 92.5 g

3. use the same method for 2
* hint: moles ratio of nitroglycerin to CO2 = 4:12 = 1:3

4. moles= mass in g/molar mass
find the moles of nitroglycerin. then, from the balanced equation, moles of water = 10/4(5/2) moles of nitroglycerin

5. use the same method as 2 and 3
*hint: oles ratio of CO2 to nitroglycerin 12:4 (3:1)